Pretty cool but being it only works during the day...why not just cut a sky light.

It's pretty common in areas with high rainfall and/or insect issues. I've seen it used frequently on a solar power forum I'm on.

Interestingly enough, it's an almost no-cost concept to bring extra light deeper into ponds that raise filter feeding aquaculture animals. You fill it halfway with water in that case and put it in racks to increase the depth of penetration of sunlight in really turbid conditions to facilitate increased plankton growth. You get a double bonus in that regard, more plankton for your filter feeders to eat, and increased filtration of nutrients since your plankton is reproducing more rapidly. It only works so and so far though since you end up needing aeration regardless and that mixes the water column thereby offsetting the total gains.

The water refracts the light as it enters so that the entire bottle glows like a light bulb does. This allows better lighting than direct sunlight because direct sunlight would only refract after it has hit the floor.

In ancient Egypt, they used to use mirrors to refract a single ray of light from mirror to mirror all around a large room so that that single ray could light up a large room rather than just the part where the light entered and hit the floor.

mythbusters disproved this as it wasn't practical due to the movement of the sun the mirrors would all have to be constantly moved and the mirror technology they had back then lost too much light each time it was reflected so after about 5 mirrors the beam of light was too weak to be of any use.

mythbusters disproved this as it wasn't practical due to the movement of the sun the mirrors would all have to be constantly moved and the mirror technology they had back then lost too much light each time it was reflected so after about 5 mirrors the beam of light was too weak to be of any use.

Saw that episode. Not only does the sun move, but unless the air is particularly dusty, the room isn't illuminated. The reflected light has to hit a terminal surface, preferably a white surface, to reflect into the room to work effectively.

Saw that episode. Not only does the sun move, but unless the air is particularly dusty, the room isn't illuminated. The reflected light has to hit a terminal surface, preferably a white surface, to reflect into the room to work effectively.

The Blue Dragon (Glaucus atlanticus), one of the world’s rarest mollusks.

What resemble dainty butterfly wings are actually roiling cauldrons of gas heated to nearly 20 000 degrees Celsius. The gas is tearing across space at more than 950 000 kilometres per hour — fast enough to travel from Earth to the Moon in 24 minutes!

A dying star that was once about five times the mass of the Sun is at the centre of this fury. It has ejected its envelope of gases and is now unleashing a stream of ultraviolet radiation that is making the cast-off material glow. This object is an example of a planetary nebula, so-named because many of them have a round appearance resembling that of a planet when viewed through a small telescope.

Intense thunderstorms drenched parts of the Southwest on Tuesday, delaying flights and stranding motorists in the Las Vegas area and flooding two mobile home parks in Southern California.

East of downtown Las Vegas, television news video showed yellow school buses inching slowly along swamped roads in some neighbors and muddy brown water up to the lower window sills of stucco homes in others.

A Twitter photo showed dozens of cars submerged in water up to their headlights in a parking lot outside a University of Nevada, Las Vegas sports arena.